【Daily Topic】【Civil Engineering Version 20160829】
Thread Content
This post was last edited by hesonchang214 on 2016-9-10 at 18:44. Reward for participation: 2 Wealth. Reward for the correct answer: 9 Wealth. When continuing to pour ready-mixed concrete at construction joints, it is necessary to first do ( ). A. Remove loose materials and loose gravel from the surface of the ready-mixed concrete. B. Thoroughly clean the construction joint; no water accumulation is allowed. C. The strength of the poured ready-mixed concrete has reached 1.2 N/mm2. D. The strength of the poured ready-mixed concrete has reached 1.0 N/mm2. E. First, lay a layer of cement mortar with the same composition as that of the ready-mixed concrete at the construction joint
When continuing to pour ready-mixed concrete at the construction joint, the following steps must be taken first (ABCE). A. Remove loose materials and loose gravel from the surface of the ready-mixed concrete. B. Thoroughly clean the construction joint; no water accumulation is allowed. C. The strength of the poured ready-mixed concrete has reached 1.2 N/mm2. D. The strength of the poured ready-mixed concrete has reached 1.0 N/mm2. E. First, lay a layer of cement mortar with the same composition as that of the ready-mixed concrete at the construction joint
A. Remove loose materials and loose gravel from the surface of the precast concrete. B. Thoroughly clean the construction joint; no water accumulation is allowed. C. The strength of the poured precast concrete should reach 1.2 N/mm2. E. First, lay a layer of cement mortar with the same composition as that of the precast concrete at the construction joint